Image:7400.jpg
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The view and element placement of the popular chip 7400. The chip contains four logical elements AND-NOT (NAND). The two additional contacts supply power (+5 V) and connect the ground.
The former Soviet Union manufactured the analog K155ЛA3, where even contacts were placed identically (the voltage supply was also + 5 V, so at least in some cases the chips were replaceable). It was a very popular chip, widely used by amateurs.
Literature
- http://opencircuitdesign.com/xcircuit/tutorial/tutorial2.html
- http://faraday.physics.utoronto.ca/IYearLab/digital.pdf
- http://www.answers.com/main/ntquery;jsessionid=17u3oewpvufgk?tname=7400-series&curtab=2222_1&hl=logic&hl=families&sbid=lc06a
- http://focus.ti.com/lit/ds/symlink/sn7400.pdf
Used GFDL images from Commons
- Image:TI SN7400N.jpg
- Image:7400 vs 4011.png
Composed by Audrius Meskauskas.
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